Plane



0. EL IAS.

PLANE.

APPLICATION FILED 1:50.27. 1920.

Patented Aug. 16,1921.

2 SHEETS-SHEET l.

O. ELIAS;

PLANE.

- APPLICATION FILED, 050,27. 1920.

2 SHEETSSHEET 2- Patented Aug. 16, 1921.

7 MZZ 'Z ZZ 17 PTATEJNT OFFICE;

oTTo ELIAS, or nocHEsTEn, PENNSYLVANIA.

PLANE.

Specification of Letters Patent. f

Application filed December 27, 1920. Serial No. 433,242.

To" all whom it may concern:

Be it known that I, OTTo ELIAS, a citizen of the United States, andresident of Rochester, in the county of Beaver and State ofPennsylvania, have invented certain new and useful Improvements inPlanes, of which the following is a specification.

This invention relates to planes, and more particularly to hand planesfor cutting grooves, having beveled side walls, in one operation, andhas for one of its ob ects the provision of such a plane that will havea guide member adapted to travel ii a previously formed groove, therebyguiding the plane and spacing the succeeding grooves an equal distancefrom the preceding groove. Another object is to provide said guidemember with a spring mounting so thatit will readily fit in grooves ofvarying depths, Another object is to so position the bits of the planethat they will have the most ef ficient cutting angles, and will cutevenly and smoothly. a

Other objects and advantages will be readily apparent from the followingspecification and claims and will be illustrated in the accompanyingdrawings, in which Figure 1 is a side elevation of a plane embodying thenovel features of this invention.

Fig. 2 is a top plan thereof.

Fig. 3 is a bottom plan thereof.

Fig. 4:18 a side elevation taken opposite to that of Fig. 1, and partlybroken away to show the guide mountings.

Fig. 5 is a sectional end elevation on the line VV of Fig. 2. i

Fig. 6 is a perspective View of a plate pattern having a groovedsurface, the grooves being such as are formed by the plane of Figs. 1 to5.

Referring particularly to the drawings, the numeral 2 designates thebody portion of the plane, which may be made of wood or any otherdesired material, and is provided with a hand grip 3 at its rear end,and a knob 4 adjacent its forward end, adapted to be gripped by theoperator to guide and steady the plane.

A substantially V-shaped longitudinal projection or rib 5 is formed onthe bottom face of the body portion 2 and adapted to ride in the groovebeing out.

One side of said body portion 2 is cut away, forming an outlet 6 for thecuttings or chips formed by the bits in cutting a groove.

if Three bits are arranged in the body portion forcuttin a V-shapedgroove, and have their lower en s projecting through the outlet portion6. Two of said bits, 8 and 9, respectively, extend upward and outwardlyatopposite angles in suitablerecesses in said body portion, and areadjust'ably secured in position by wedge members 10 and 11 respectively.The bits '8 and 9 are provided 'with knife-like lower ends adapted toout The third the beveledsides of a groove. blade 15'extei1ds rearwardlyon an angle in a suitable recess, and is set so that its cutting edgeextends at an angle to the transverse plane of the body portion 2 sothat a lead out is first made as the plane advances on the work andincreases as the plane isadvanced until the whole cutting edge of thebit is engaged.

The blade 15 is adjustably held in position .inits recess by a wedgemember 16in the same'manner as the bits 8 and 9.

A longitudinal slot 17 is formed adjacent one side of the body portion 2and an adjustable spring tensioned guide bar 18 is mounted therein. Theguide bar 18 has a pair of guide pins 19 mounted in itsupper face, whichis cut away around each pin forming a seat 20. The upper face of theslot 17 is correspondingly recessed, forming seats 21- and helicalsprings 24, mounted around the pins 19, have their ends mounted in therespective seats 20 and 21, and tend to normally press or force theguide bar 18 outwardly. The guide bar 18 is held in the slot 17 andlimited in its movement by screws or pins 25 which passthrough slots orguide ways 26 in the bar and are secured in the body of the plane.

The guide bar 18 has its lower longitudinaledges beveled as at29, sothat it will snugly fit within a groove cut by the blades 8, 9 and 15.The forward end of the guide bar 18 projects a considerable distancebeyond the'body portion 2'to facilitate its insertion in a previouslyformed groove.

In Fig. 6 a plate pattern 30 is shown, which is of a well known designused in making cast metal floor plates. The pattern 30 is provided witha plurality of longitudinal and transverse grooves 8, having beveledside faces.

It will be readily seen that in cutting a plurality of parallel grooves,such as are shown in the plate 30, a plane constructed in accordancewith this invention will greatly Patented Aug. 16',

facilitate the work. In using a plane constructed in accordance withthis invention, it is only necessary to locate the first groove of eachgroup, and to then insert the guide bar in'the previously formed groovein order to locate each succeeding groove of the group. Also thearrangement of the bits 8, 9 and 15 is such that the bevel willbe cut onthe side faces of the groove in the same operation that forms the bottomand cuts out the groove, thus doing in one operation, what has usuallynecessitated two or more operations.

Yhile only one embodiment of my invention shown and described, it willbe understood that it is only illustrative, and that I do not wish to belimited thereto since various changes in design and minor details ofconstruction may be made Without deiarting from the spirit and scope ofmy invention as defined in the aopendedclaims.

1. A plane for forming grooves in a work piece, comprising a bodyportion,'at least one cutting bit mounted in said body portion havingits cutting end projecting through the bottom face of said body portion,and a guide rib resiliently mounted for vertical movement in a slot inthe bottomface of said body portion, said guide rib being spaced to oneside of said bit, and being adapted to fit in a previously formedgroove, thereby guiding said plane to equallv space each succeedinggroove 2. A plane for forming grooves in a work piece, comprising a bodyportion, at least one cutting bit mounted in said body portion havingits cutting end projecting through. the bottom face of said bodyportion, a guide rib projecting from the bottom face of and formedintegral with said body portion and adapted to'ride in the groove beingcut, and a second guide rib spaced to the one side of said first namedrib, said second named rib being mounted for vertical movement in a slotformed in the bottom face of said body portion, and being adapted toride in a previously formed groove to guioe said plane and equally spaceeach succeding groove.

3. A plane comprising a body portion, threebits adjustably securedinsaid body portion adapted to cut a groove having a flat bottom andoutwardly flaring side wall" portions, a guide rib formed integral withthe bottom wall of said body portion on a line with said bits andadapted to travel in the groove being cut, and a second guide ribresiliently mounted for vertical moveu'ient In testimony whereof, I havehereunto signed my name.

orro Ennis

